static void __osm_vendor_internal_unbind(osm_bind_handle_t h_bind)
{
osmv_bind_obj_t *p_bo = (osmv_bind_obj_t *) h_bind;
osm_log_t *p_log = p_bo->p_vendor->p_log;
OSM_LOG_ENTER(p_log);
/* "notifying" all that from now on no new sends can be done */
p_bo->txn_mgr.p_event_wheel->closing = TRUE;
osmv_txn_lock(p_bo);
/*
the is_closing is set under lock we we know we only need to
check for it after obtaining the lock
*/
p_bo->is_closing = TRUE;
/* notifying all sleeping rmpp sends to exit */
osmv_txn_abort_rmpp_txns(h_bind);
/* unlock the bo to allow for any residual mads to be dispatched */
osmv_txn_unlock(p_bo);
osm_log(p_log, OSM_LOG_DEBUG,
"__osm_vendor_internal_unbind: destroying transport mgr.. \n");
/* wait for the receiver thread to exit */
osmv_transport_done(h_bind);
/* lock to avoid any collissions while we cleanup the structs */
osmv_txn_lock(p_bo);
osm_log(p_log, OSM_LOG_DEBUG,
"__osm_vendor_internal_unbind: destroying txn mgr.. \n");
osmv_txnmgr_done(h_bind);
osm_log(p_log, OSM_LOG_DEBUG,
"__osm_vendor_internal_unbind: destroying bind lock.. \n");
osmv_txn_unlock(p_bo);
/*
we intentionally let the p_bo and its lock leak -
as we did not implement a way to track active bind handles provided to
the client - and the client might use them
cl_spinlock_destroy(&p_bo->lock);
free(p_bo);
*/
OSM_LOG_EXIT(p_log);
}
ib_api_status_t
osmv_rmpp_send_madw(IN osm_bind_handle_t h_bind,
IN osm_madw_t * const p_madw,
IN osmv_txn_ctx_t * p_txn, IN boolean_t is_rmpp_ds)
{
ib_api_status_t ret = IB_SUCCESS;
uint32_t i, total_segs;
osmv_rmpp_send_ctx_t *p_send_ctx = osmv_txn_get_rmpp_send_ctx(p_txn);
osmv_bind_obj_t *p_bo = (osmv_bind_obj_t *) h_bind;
OSM_LOG_ENTER(p_bo->p_vendor->p_log);
total_segs = osmv_rmpp_send_ctx_get_num_segs(p_send_ctx);
CL_ASSERT(total_segs >= 1);
/* In the double-sided transfer, wait for ACK 0 */
for (;;) {
if (p_send_ctx->window_first > total_segs) {
/* Every segment is acknowledged */
break;
}
/* Send the next burst. */
for (i = p_send_ctx->window_first; i <= p_send_ctx->window_last;
i++) {
/* Send a segment and setup a timeout timer */
ret = __osmv_rmpp_send_segment(h_bind, p_txn, i);
if (IB_SUCCESS != ret) {
goto send_done;
}
}
/* Set the Response Timeout for the ACK on the last DATA segment */
ret = osmv_txn_set_timeout_ev(h_bind, osmv_txn_get_key(p_txn),
p_bo->p_vendor->resp_timeout);
if (IB_SUCCESS != ret) {
goto send_done;
}
/* Going to sleep. Let the others access the transaction DB */
osmv_txn_unlock(p_bo);
osm_log(p_bo->p_vendor->p_log, OSM_LOG_DEBUG,
"RMPP Sender thread (madw=%p) going to sleep ...\n",
p_madw);
/* Await the next event to happen */
cl_event_wait_on(&p_send_ctx->event,
EVENT_NO_TIMEOUT, TRUE /* interruptible */ );
/* Got a signal from the MAD dispatcher/timeout handler */
osm_log(p_bo->p_vendor->p_log, OSM_LOG_DEBUG,
"RMPP Sender thread (madw=%p) waking up on a signal ...\n",
p_madw);
/* Let's see what changed... Make this atomic - re-acquire the lock. */
osmv_txn_lock(p_bo);
if (TRUE == p_bo->is_closing) {
osm_log(p_bo->p_vendor->p_log, OSM_LOG_ERROR,
"osmv_rmpp_send_madw: ERR 6601: "
"The bind handle %p is being closed. "
"Stopping the RMPP Send of MADW %p\n",
h_bind, p_madw);
ret = IB_TIMEOUT;
return IB_INTERRUPTED;
}
/* STOP? ABORT? TIMEOUT? */
if (IB_SUCCESS != p_send_ctx->status) {
osm_log(p_bo->p_vendor->p_log, OSM_LOG_ERROR,
"osmv_rmpp_send_madw: ERR 6602: "
"An error (%s) happened during the RMPP send of %p. Bailing out.\n",
ib_get_err_str(p_send_ctx->status), p_madw);
ret = p_send_ctx->status;
goto send_done;
}
}
if (TRUE == is_rmpp_ds) {
osm_log(p_bo->p_vendor->p_log, OSM_LOG_DEBUG,
"Double-sided RMPP - switching to be the receiver.\n");
ret = osmv_txn_init_rmpp_receiver(h_bind, p_txn, FALSE
/*Send was initiated by me */
);
if (IB_SUCCESS == ret) {
/* Send ACK on the 0 segment */
ret = __osmv_rmpp_send_segment(h_bind, p_txn, 0);
}
}
send_done:
OSM_LOG_EXIT(p_bo->p_vendor->p_log);
return ret;
}
ib_api_status_t
osm_vendor_send(IN osm_bind_handle_t h_bind,
IN osm_madw_t * const p_madw, IN boolean_t const resp_expected)
{
ib_api_status_t ret = IB_SUCCESS;
osmv_bind_obj_t *p_bo = (osmv_bind_obj_t *) h_bind;
boolean_t is_rmpp = FALSE, is_rmpp_ds = FALSE;
osmv_txn_ctx_t *p_txn = NULL;
ib_mad_t *p_mad;
osm_log_t *p_log = p_bo->p_vendor->p_log;
osm_mad_pool_t *p_mad_pool = p_bo->p_osm_pool;
OSM_LOG_ENTER(p_log);
if (NULL == h_bind || NULL == p_madw ||
NULL == (p_mad = osm_madw_get_mad_ptr(p_madw)) ||
NULL == osm_madw_get_mad_addr_ptr(p_madw)) {
return IB_INVALID_PARAMETER;
}
is_rmpp = (p_madw->mad_size > MAD_BLOCK_SIZE
|| osmv_mad_is_rmpp(p_mad));
/* is this rmpp double sided? This means we expect a response that can be
an rmpp or not */
is_rmpp_ds = (TRUE == is_rmpp && TRUE == resp_expected);
/* Make our operations with the send context atomic */
osmv_txn_lock(p_bo);
if (TRUE == p_bo->is_closing) {
osm_log(p_log, OSM_LOG_ERROR,
"osm_vendor_send: ERR 7310: "
"The handle %p is being unbound, cannot send.\n",
h_bind);
ret = IB_INTERRUPTED;
/* When closing p_bo could be detroyed or is going to , thus could not refer to it */
goto send_done;
}
if (TRUE == resp_expected || TRUE == is_rmpp) {
/* We must run under a transaction framework.
* Get the transaction object (old or new) */
ret = __osmv_get_send_txn(h_bind, p_madw, is_rmpp,
resp_expected, &p_txn);
if (IB_SUCCESS != ret) {
goto send_done;
}
}
if (TRUE == is_rmpp) {
/* Do the job - RMPP!
* The call returns as all the packets are ACK'ed/upon error
* The txn lock will be released each time the function sleeps
* and re-acquired when it wakes up
*/
ret = osmv_rmpp_send_madw(h_bind, p_madw, p_txn, is_rmpp_ds);
} else {
/* Do the job - single MAD!
* The call returns as soon as the MAD is put on the wire
*/
ret = osmv_simple_send_madw(h_bind, p_madw, p_txn, FALSE);
}
if (IB_SUCCESS == ret) {
if ((TRUE == is_rmpp) && (FALSE == is_rmpp_ds)) {
/* For double-sided sends, the txn continues to live */
osmv_txn_done(h_bind, osmv_txn_get_key(p_txn),
FALSE /*not in callback */ );
}
if (FALSE == resp_expected) {
osm_mad_pool_put(p_mad_pool, p_madw);
}
} else if (IB_INTERRUPTED != ret) {
if (NULL != p_txn) {
osmv_txn_done(h_bind, osmv_txn_get_key(p_txn),
FALSE /*not in callback */ );
}
osm_log(p_log, OSM_LOG_ERROR,
"osm_vendor_send: ERR 7311: failed to send MADW %p\n",
p_madw);
if (TRUE == resp_expected) {
/* Change the status on the p_madw */
p_madw->status = ret;
/* Only the requester expects the error callback */
p_bo->send_err_cb(p_bo->cb_context, p_madw);
} else {
/* put back the mad - it is useless ... */
osm_mad_pool_put(p_mad_pool, p_madw);
}
} else { /* the transaction was aborted due to p_bo exit */
osm_mad_pool_put(p_mad_pool, p_madw);
goto aborted;
}
send_done:
osmv_txn_unlock(p_bo);
aborted:
OSM_LOG_EXIT(p_log);
return ret;
}
ib_api_status_t
osmv_dispatch_mad(IN osm_bind_handle_t h_bind,
IN const void *p_mad_buf,
IN const osm_mad_addr_t * p_mad_addr)
{
ib_api_status_t ret = IB_SUCCESS;
const ib_mad_t *p_mad = (ib_mad_t *) p_mad_buf;
osmv_bind_obj_t *p_bo = (osmv_bind_obj_t *) h_bind;
osmv_txn_ctx_t *p_txn = NULL;
osm_log_t *p_log = p_bo->p_vendor->p_log;
OSM_LOG_ENTER(p_bo->p_vendor->p_log);
CL_ASSERT(NULL != h_bind && NULL != p_mad && NULL != p_mad_addr);
osmv_txn_lock(p_bo);
if (TRUE == p_bo->is_closing) {
osm_log(p_bo->p_vendor->p_log, OSM_LOG_DEBUG,
"The bind handle %p is being closed. "
"The MAD will not be dispatched.\n", p_bo);
ret = IB_INTERRUPTED;
goto dispatch_mad_done;
}
/*
Add call for packet drop randomizer.
This is a testing feature. If run_randomizer flag is set to TRUE,
the randomizer will be called, and randomally will drop
a packet. This is used for simulating unstable fabric.
*/
if (p_bo->p_vendor->run_randomizer == TRUE) {
/* Try the randomizer */
if (osm_pkt_randomizer_mad_drop(p_bo->p_vendor->p_log,
p_bo->p_vendor->
p_pkt_randomizer,
p_mad) == TRUE) {
osm_log(p_bo->p_vendor->p_log, OSM_LOG_DEBUG,
"The MAD will not be dispatched.\n");
goto dispatch_mad_done;
}
}
switch (__osmv_dispatch_route(h_bind, p_mad, &p_txn)) {
case OSMV_ROUTE_DROP:
break; /* Do nothing */
case OSMV_ROUTE_SIMPLE:
__osmv_dispatch_simple_mad(h_bind, p_mad, p_txn, p_mad_addr);
break;
case OSMV_ROUTE_RMPP:
__osmv_dispatch_rmpp_mad(h_bind, p_mad, p_txn, p_mad_addr);
break;
default:
CL_ASSERT(FALSE);
}
dispatch_mad_done:
osmv_txn_unlock(p_bo);
OSM_LOG_EXIT(p_log);
return ret;
}